Baseline characteristics for the intervention and control groups
| Control (n=23) | Intervention (n=25) | |||
|---|---|---|---|---|
| Mean | SD | Mean | SD | |
| Age (y) | 60.7 | 12.0 | 55.7 | 15.1 |
| Male : female (No) | 14 : 9 | 14 : 11 | ||
| Mean 24 h systolic BP mm Hg | 156.0 | 10.7 | 149.3 | 15.2 |
| Mean 24 h diastolic BP mm Hg | 85 | 5.8 | 85 | 6.3 |
| Diabetes (%) | 14 | (60) | 17 | 68 |
| Glycosylated Hb (%) | 8.6 | 1.8 | 8.9 | 1.9 |
| GFR mL/min/1.73 m2 | 42 | 15.3 | 41 | 17.2 |
| Urinary sodium mmol/24 h | 259 | 47.1 | 263 | 54.0 |
| Urinary potassium mmol/24 h | 39 | 6.9 | 43 | 4.0 |
| Urinary creatine mmol/24 h | 11.15 | 1.9 | 10.75 | 1.3 |
| No of BP medications/patient* | 3 | (2,4) | 3 | (2,4) |
| Total body water (kg) | 33.1 | 5.9 | 33.4 | 5.2 |
| BMI (kg/m2) | 27.1 | 5.2 | 26.6 | 5.4 |
| Physical activity (steps/day)* | 2,534 | 1,101 | 2,471 | 1,419 |
No statistical significant differences between the two groups.
*Median with IQR.
BMI, body mass index; BP, blood pressure; GFR, glomerular filtration rate, Hb, haemoglobin.